Pipe-wrench



-No. 627,075. Patented lune l3, I899. J. C. GIFFURD.

PIPE WRENCH.

(Application filed Mar 15, 1899.)

(No Model.)

% 2171/6 was Y t'z orneys- HNITED STATES PATENT 'OFFICE JIREI-I O. GIFFORD, OF CAMBRIDGE, MASSACHUSETTS.

PIPE-WRENCH.

SPECIFICATION forming part of Letters Patent Ne. 627,075, dated J'uii 13, 1899.

flat end surface extending crosswise of the frame and a strap one end of which is secured to the head of the frame above the up-. per end of the flat end surface of the head and whose other end is detachably secured to the frame in such wise that when the strap is about the pipe one portion of the strap is between the flat end surface of the head and the pipe, the rest of the strap passing around the pipe, and to the means for detachablysecuring it to the frame.

In the drawings, A is the frame, screwthreaded at a and provided with the handle a. One end of strap B is secured to frame A at a by screws 1) b and the other end .of the strap is provided with a metal loop I), which engages a hook d on the saddle D.

The operation is as follows: The strap Bis passed around the pipe 0 and the loop I) put into hook d. The wrench is then moved toward the pipe until the end of the frame binds the strap between it and the pipe. The handle is then moved in the desired direction, and

Serial No. 709,191. (No model.)

into contact with the metal of the wrench and that the pipe will not be scratched or otherwise marred by the use of my wrench.

Another advantage of my wrench is that it can be usedwhen the pipe to be set up is near a wall, as only a distance between the wall and the pipe equal to a little more than the thickness of the strap is necessary to enable my wrench to be used.

I am aware of Provands English patent, No. 10,674, of 1891, and disclaim everything shown therein,for none of the various forms of wrenches shown in that patent are at all like mine, unless it be the form shown in Figs. 1 and 2; but that form is on a wholly different principle from mine, for the head of the wrench is simply one part of a three-armed lever, the upper and lower rounded portions of the head making two short arms and the handle the third long arm, audit is impossible with that form of. wrench to pinch the strap between the fiat end surface of the head of the wrench and the pipe, while this pinching of the strap between the flat end surface of the head of the wrench and the pipe is the distinguishing feature of my invention, and this mode of operation, wholly new with me, is made possible by securing one end of the strap above the upper end of that flat end sur- JIREH C. GIFFORD.

Witnesses:

WM. MAYNADIER, FRED E. SANDS. 

